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Dive into the research topics where Christine Opagiste is active.

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Featured researches published by Christine Opagiste.


International Conference on Strongly Correlated Electron Systems 2014 (SCES2014) | 2015

First neutron studies of the magnetism and rattling modes in CePt4Ge12

R.M. Galera; Christine Opagiste; Mehdi Amara; Mohamed Zbiri; S. Rols

The filled skutterudite CePt4Ge12 is reported to be at the border between an intermediate valence (IV) state and a Kondo lattice behavior. We report here the first inelastic neutron scattering experiments, carried out on the Ce compound and its non-magnetic counterpart LaPt4Ge12. Prior the neutron studies, the structural and magnetic properties of both samples have been determined. Inelastic neutron scattering spectra are dominated by phonon contribution for both compounds. A rattling vibration mode is observed at 6.9 meV and 7.5 meV for the Ce and La compounds, respectively. In CePt4Ge12 no crystal field excitation could be resolved. Only a small and wide extra contribution at high energy (22-28 meV) is observed. This result would be more consistent with an IV behavior.


Journal of Magnetism and Magnetic Materials | 2013

Metamagnetic behaviour of Nd3Pt23Si11

Christine Opagiste; Martin Jackson; R.M. Galera; Elsa Lhotel; Carley Paulsen; B. Ouladdiaf


Physical Review B | 2011

Unconventional behavior of the Ce3Pt23Si11 ferromagnet

Christine Opagiste; R.M. Galera; Mehdi Amara; Carley Paulsen; S. Rols; B. Ouladdiaf


Journal of Alloys and Compounds | 2012

Crystal structure and physical properties of the new ternary compounds Nd3Pt23Si11 and Pr3Pt23Si11

Christine Opagiste; R.-M. Galéra


Journal of Crystal Growth | 2005

Crystal growth and characterization of the ruthenate superconducting compound: Sr2RuO4

F. Servant; J. P. Brison; A. Sulpice; Christine Opagiste; V. Madigou; P. Lejay


Journal of Crystal Growth | 2010

Lu5Ir4Si10 whiskers: Morphology, crystal structure, superconducting and charge density wave transition studies

Christine Opagiste; M. Leroux; Pierre Rodiere; Gaston Garbarino; Sébastien Pairis; P. Bordet; P. Lejay


Journal of Alloys and Compounds | 2018

Magnetic properties of Cr2AlB2, Cr3AlB4, and CrB powders

Sankalp Kota; Wenzhen Wang; Jun Lu; Varun Natu; Christine Opagiste; Guobing Ying; Lars Hultman; Steven J. May; Michel W. Barsoum


Journal of Magnetism and Magnetic Materials | 2015

Physical properties of the R3Pt23Si11 compounds with volatile rare earth: Sm, Eu, Tm and Yb

Christine Opagiste; C. Barbier; Richard Haettel; R.M. Galera


arXiv: Superconductivity | 2018

Disorder raises the critical temperature of a cuprate superconductor.

Maxime Leroux; Vivek Mishra; Jacob Ruff; H. Claus; M. P. Smylie; Christine Opagiste; Pierre Rodiere; A. Kayani; G. D. Gu; John M. Tranquada; Wai-Kwong Kwok; Zahirul Islam; U. Welp


International Conference on Supercondivity and Magnetism : ICSM 2012 | 2012

TWO NEW MAGNETIC CUBIC COMPOUNDS: Pr3Pt23Si11 AND Nd3Pt23Si11

Christine Opagiste; R.M. Galera; Elsa Lhotel; Martin Jackson; Carley Paulsen

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R.M. Galera

Centre national de la recherche scientifique

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P. Lejay

Centre national de la recherche scientifique

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Pierre Rodiere

Centre national de la recherche scientifique

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Carley Paulsen

Centre national de la recherche scientifique

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Elsa Lhotel

Centre national de la recherche scientifique

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P. Bordet

Centre national de la recherche scientifique

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Maxime Leroux

Argonne National Laboratory

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Mehdi Amara

Centre national de la recherche scientifique

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Gaston Garbarino

European Synchrotron Radiation Facility

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S. Rols

University of Montpellier

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